I shot a similar pattern this evening...............
but I was testing APP in my 12 ga NewEnglander
Wanted to see what it would do with APP using the 209 MagSpark adapter. Every shot went off quickly, but there seemed to be some variation in the felt recoil. Humidity was 100% and the APP was clumped in the measure when I threw the first charge. Had to shake it to get it loose.